Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2012 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Lighting System) >> Diagnostic Information and Procedures >> DTC B3889 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.

The trailer brake control module will receive a serial data message from the BCM indicating that the vehicle brake lamps have been activated. The trailer brake control module will then apply system voltage to the trailer stop lamps through their respective voltage supply circuits.

scientia non olet · About Mike's Workshop Manuals